package com.k2.gulimall.cart.vo;

import java.math.BigDecimal;
import java.util.List;

/**
 * 购物车
 * 计算属性需重写get方法
 */
public class Cart {
    List<CartItem> items;

    private Integer countNum;//商品数量

    private Integer countType;//商品类型数量

    private BigDecimal totalAmount;//商品总价

    private BigDecimal reduce = new BigDecimal("0.00");//减免价格

    public List<CartItem> getItems() {
        return items;
    }

    public void setItems(List<CartItem> items) {
        this.items = items;
    }

    public Integer getCountNum() {
        int count = 0;
        if (items!=null && items.size()>0){
            for (CartItem item : items){
                count+=item.getCount();
            }
        }
        return count;
    }

    /**
     * 商品数量
     * @return
     */
    public Integer getCountType() {
        int count = 0;
        if (items!=null && items.size()>0){
            for (CartItem item : items){
                count+=1;
            }
        }
        return count;
    }

    public BigDecimal getTotalAmount() {
        BigDecimal amout = new BigDecimal("0");
        //计算商品总价
        if (items!=null && items.size()>0){
            for(CartItem item : items){
                BigDecimal totalPrice = item.getTotalPrice();
                amout = amout.add(totalPrice);
            }
        }
        //减去优惠价
        BigDecimal subtract = amout.subtract(getReduce());
        return subtract;
    }

    public BigDecimal getReduce() {
        return reduce;
    }

    public void setReduce(BigDecimal reduce) {
        this.reduce = reduce;
    }
}
